A snow groomer having a frame extending along a longitudinal axis; ten supporting wheels connected to the frame by respective axle shafts to form a row of five supporting wheels on each longitudinal side of the frame, each supporting wheel on one longitudinal side of the frame facing a supporting wheel on the opposite longitudinal side of the frame, so that facing pairs of supporting wheels define a first, second, third, fourth, and fifth axle; two tracks, each looped about the supporting wheels aligned along a respective longitudinal side of the frame; an engine assembly of over 430 HP; and a mass distributed as follows: 16%+/-2% on the first axle; 20%+/-2% on the second axle; 20%+/-2% on the third axle; 22%+/-2% on the fourth axle; and 22%+/-2% on the fifth axle.